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A resistance of 20 ohm is connected to a source of an alternating potential V=220 sin (100 πt). The time taken by the current to change from its peak value to r.m.s value is
Options
(a) 2.5 x 10⁻³ sec
(b) 0.25 sec
(c) 25 x 10⁻³ sec
(d) 2.5 sec
Correct Answer:
2.5 x 10⁻³ sec
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The angle between the dipole moment and electric field at any point on the equatoria
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
- Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
- The 6563 Å line emitted by hydrogen atom in a star is found to be red shifted by 5Å
- A source of unknown frequency gives 4 beats/s, when sounded with a source harmonic
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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